Ever since I installed 10.6 Snow Leopard, the all-new, slow, laggy Exposé has been a constant annoyance for me. The windows in the 10.6 Exposé were now all neatly aligned and labeled, but the transition animation was choppy, adding to the perception of a slowed down OS. As always, I am running the OSX user interface mostly with BeamSync turned off, but that didn’t help the choppy 10.6 Exposé much. Being an optimization freak, a slow interface is sort of a worst thing for me. The general conclusion was that Exposé in the previous version of Mac OSX, 10.5 Leopard, was faster, smoother and also more intuitive, and the question was how to get the same functionality of Leopard’s Exposé back into Snow Leopard.
Luckily, a guy named miknos at MacRumors Forums came up with a solution and all I can say is thank you very much. The fix requires to replace Snow Leopard’s Dock.app (found in System>Library>Core Services) with a fixed Dock.app from an early BETA version of Snow Leopard. I’m running 10.6.3 and the solution works with a 10.6.4 as well. It requires you to download the fixed dock and use some Terminal, so here are the instructions, copied from the MacRumors forum:
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Instructions:
1 – Download the fixed Dock.app from this link on a MacRumors forum thread. Extract to Desktop.
2 – Create a new folder on the desktop called OldDock.
3 – Open terminal and (changing username) type:
sudo chown -R root /Users/USER/Desktop/Dock.app
type your password if necessary
sudo chgrp -R wheel /Users/USER/Desktop/Dock.app
Now copy/paste everything. Don’t forget to change to your username:
sudo killall Dock && \
sudo mv /System/Library/CoreServices/Dock.app /Users/USER/Desktop/OldDock/ && \
sudo mv /Users/USER/Desktop/Dock.app /System/Library/CoreServices/
Restart and Enjoy! To revert, just put the dock.app inside OldDock folder in Desktop and repeat everything.
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Read the whole thread here: http://forums.macrumors.com/showthread.php?t=869611
